NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1346 - 1353 of 1484

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Question number: 1346

» Chemistry » Acids, Bases and Salts

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MCQ▾

Question

What is the reason behind in adding small amount of baking soda to fresh milk?

Choices

Choice (4) Response

a.

To increase the rate of fermentation

b.

To increase its quality

c.

To make paneer

d.

To decrease the rate of fermentation

Question number: 1347

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

In order to balance the given equation, what does ‘x’ stands for?

Choices

Choice (4) Response

a.

3

b.

1

c.

2

d.

5

Question number: 1348

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

Which substance is reduced in the above reaction?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1349

» Chemistry » Periodic Classification of Elements

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MCQ▾

Question

The elements which occupy their positions in periodic table just after the members of zero group are?

Choices

Choice (4) Response

a.

Alkali metals

b.

Metals

c.

Radioactive

d.

Gases

Question number: 1350

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

………. . gas is used in flush bags of Chips to prevent oxidation?

Choices

Choice (4) Response

a.

Helium

b.

Nitrogen

c.

Neon

d.

Argon

Question number: 1351

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

How many hydrogen ions are required to make or reduce to ?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1352

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

Which of the following is oxidized in the above reaction?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1353

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

is ……………. . type of reaction?

Choices

Choice (4) Response

a.

Displacement reaction

b.

Double displacement reaction

c.

Combination reaction

d.

Decomposition reaction

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